From b23908d3c48a37c46c6a26df2cdeab1610b360ba Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Sun, 17 Jun 2018 14:09:42 +0200 Subject: firmware: dmi: Add access to the SKU ID string This is used in some systems from user space for determining the identity of the device. Expose this as a file so that that user-space tools don't need to read from /sys/firmware/dmi/tables/DMI Signed-off-by: Simon Glass Signed-off-by: Jean Delvare --- drivers/firmware/dmi-id.c | 2 ++ drivers/firmware/dmi_scan.c | 1 + 2 files changed, 3 insertions(+) (limited to 'drivers/firmware') diff --git a/drivers/firmware/dmi-id.c b/drivers/firmware/dmi-id.c index 951b6c79f166..624a11cb07e2 100644 --- a/drivers/firmware/dmi-id.c +++ b/drivers/firmware/dmi-id.c @@ -47,6 +47,7 @@ DEFINE_DMI_ATTR_WITH_SHOW(product_name, 0444, DMI_PRODUCT_NAME); DEFINE_DMI_ATTR_WITH_SHOW(product_version, 0444, DMI_PRODUCT_VERSION); DEFINE_DMI_ATTR_WITH_SHOW(product_serial, 0400, DMI_PRODUCT_SERIAL); DEFINE_DMI_ATTR_WITH_SHOW(product_uuid, 0400, DMI_PRODUCT_UUID); +DEFINE_DMI_ATTR_WITH_SHOW(product_sku, 0444, DMI_PRODUCT_SKU); DEFINE_DMI_ATTR_WITH_SHOW(product_family, 0444, DMI_PRODUCT_FAMILY); DEFINE_DMI_ATTR_WITH_SHOW(board_vendor, 0444, DMI_BOARD_VENDOR); DEFINE_DMI_ATTR_WITH_SHOW(board_name, 0444, DMI_BOARD_NAME); @@ -193,6 +194,7 @@ static void __init dmi_id_init_attr_table(void) ADD_DMI_ATTR(product_serial, DMI_PRODUCT_SERIAL); ADD_DMI_ATTR(product_uuid, DMI_PRODUCT_UUID); ADD_DMI_ATTR(product_family, DMI_PRODUCT_FAMILY); + ADD_DMI_ATTR(product_sku, DMI_PRODUCT_SKU); ADD_DMI_ATTR(board_vendor, DMI_BOARD_VENDOR); ADD_DMI_ATTR(board_name, DMI_BOARD_NAME); ADD_DMI_ATTR(board_version, DMI_BOARD_VERSION); diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c index 54e66adef252..f2483548cde9 100644 --- a/drivers/firmware/dmi_scan.c +++ b/drivers/firmware/dmi_scan.c @@ -447,6 +447,7 @@ static void __init dmi_decode(const struct dmi_header *dm, void *dummy) dmi_save_ident(dm, DMI_PRODUCT_VERSION, 6); dmi_save_ident(dm, DMI_PRODUCT_SERIAL, 7); dmi_save_uuid(dm, DMI_PRODUCT_UUID, 8); + dmi_save_ident(dm, DMI_PRODUCT_SKU, 25); dmi_save_ident(dm, DMI_PRODUCT_FAMILY, 26); break; case 2: /* Base Board Information */ -- cgit v1.2.3 From 52e1cf2d19c2e62e6a81b8de3f7320d033917dd5 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Fri, 22 Jun 2018 08:42:22 +0200 Subject: efi/libstub/tpm: Initialize efi_physical_addr_t vars to zero for mixed mode Commit: 79832f0b5f71 ("efi/libstub/tpm: Initialize pointer variables to zero for mixed mode") fixes a problem with the tpm code on mixed mode (64-bit kernel on 32-bit UEFI), where 64-bit pointer variables are not fully initialized by the 32-bit EFI code. A similar problem applies to the efi_physical_addr_t variables which are written by the ->get_event_log() EFI call. Even though efi_physical_addr_t is 64-bit everywhere, it seems that some 32-bit UEFI implementations only fill in the lower 32 bits when passed a pointer to an efi_physical_addr_t to fill. This commit initializes these to 0 to, to ensure the upper 32 bits are 0 in mixed mode. This fixes recent kernels sometimes hanging during early boot on mixed mode UEFI systems. Signed-off-by: Hans de Goede Signed-off-by: Ard Biesheuvel Cc: # v4.16+ Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: linux-efi@vger.kernel.org Link: http://lkml.kernel.org/r/20180622064222.11633-2-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar --- drivers/firmware/efi/libstub/tpm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/firmware') diff --git a/drivers/firmware/efi/libstub/tpm.c b/drivers/firmware/efi/libstub/tpm.c index caa37a6dd9d4..a90b0b8fc69a 100644 --- a/drivers/firmware/efi/libstub/tpm.c +++ b/drivers/firmware/efi/libstub/tpm.c @@ -64,7 +64,7 @@ static void efi_retrieve_tpm2_eventlog_1_2(efi_system_table_t *sys_table_arg) efi_guid_t tcg2_guid = EFI_TCG2_PROTOCOL_GUID; efi_guid_t linux_eventlog_guid = LINUX_EFI_TPM_EVENT_LOG_GUID; efi_status_t status; - efi_physical_addr_t log_location, log_last_entry; + efi_physical_addr_t log_location = 0, log_last_entry = 0; struct linux_efi_tpm_eventlog *log_tbl = NULL; unsigned long first_entry_addr, last_entry_addr; size_t log_size, last_entry_size; -- cgit v1.2.3